Azure CLI

In Azure CLI 2.0, provide the name of the policy definition:

az policy definition show --name regionPolicyAssignment

Solution

For security or compliance, your subscription administrators might assign policies that limit how resources are deployed. For example, your subscription might have a policy that prevents creating Public IP addresses, Network Security Groups, User-Defined Routes, or route tables. The error message in the Symptoms section shows the name of the policy.
To resolve this problem, review the resource policies, and determine how to deploy resources that comply with those policies.